Hemidactylus frenatus is a small lizard species, native to southeast Asia, that has been accidentally introduced to many tropical and subtropical places around the world via cargo shipments and as commercial feeder food for zoo and pet animals.
It quickly becomes established in suitable habitats.
Hemidactylus frenatus is an arboreal and nocturnal lizard species that is mostly observed on building walls at night time, especially around lights.
Twan Leenders, biologist and author of the Guide to the Amphibians and Reptiles of Costa Rica and some other books on reptiles and amphibians in Costa Rica, helped me identifying this species.
Sabaletas, Buenaventura area, Valle del Cauca, Colombia, 16 June 2016